Virtual Servers

Virtual Servers

Follow our helpful guides and other resources for your Virtual Server related questions.

What Ports do Virtual Private Servers have open?

Overview All of our Virtual Private Server (VPS) configurations are based on a standard Plesk configuration and build process. As part of this, a number of services are configured and managed by Plesk and many of which have...

How to reboot your VPS in the Conetix Console

Overview This process details how you can restart your VPS in your Conetix account. A reboot may be required where your server has stopped responding and the Plesk emergency access was unable to resolve the issue. If you...

Removing a Subdomain on a Plesk VPS

Overview This article describes how a VPS customer can remove a subdomain from within Plesk. This is useful for removing unwanted or unnecessary staging or development sites. Instructions Log in to your Plesk VPS  Navigate to Subscriptions in...

WP-CLI not working via SSH with open_basedir error

Overview Plesk introduced a new feature in Plesk 18.0.44 and above which syncronises the PHP version on the site with the PHP version available via SSH for utilities such as Composer and WP-CLI. When attempting to run a...

How to Create a Subscription User in Plesk

Overview A Subscription user is used to grant access to a specific domain or all domains on a subscription. For example, a subscription user would be used to grant a Website Developer access to a single domain or...

ModSecurity Update Error

Overview ModSecurity is a Web Application Firewall (WAF) feature which is available with all Plesk servers. A WAF on your server can filter and block known, malicious requests before they can reach your application. Conetix uses and recommends...

Conetix CentOS 8 support beyond December 2021

Overview CentOS is removing support for CentOS 8 due to their shift to only supporting the CentOS Stream project. This means that all existing CentOS 8 systems will require a transition to a different Operating System (OS) in...

Plesk Firewall Extension – Do not use

Overview Plesk provide an extension to manage firewall rules on your Virtual Private Server (VPS) within Plesk, however this extension is outdated and will break your server. This is due to the extension using older methods to manage...

Apache Log4j Vulnerability (December 2021)

Overview The Apache Log4j library is a popular, Java based logging utility used by many Java applications. In early December 2021, a critical vulnerability was discovered which allowed for Remote Code Execution (RCE). This vulnerability (CVE-2021-44228) was also...

Apache Pagespeed – Enable per website

Overview Apache Pagespeed (formerally known as Google mod_pagespeed) is an an extension available to both Apache and NGINX which automatically applies web performance best practices. This includes functions such as CSS minification, image optimisation, deferral of JavaScript loading...

Plesk VPS Cron Emails

Overview Occasionally, you may receive an email notifying you of a Cron Daemon failure or error. This will generally have the subject of the email as: While the error may be confusing, not all of them are necessarily...

How to Set Resource Limits for a Plesk Service Plan

Overview If you have your own Plesk server, you can use service plans to limit resources. This allows you to set different plans for your customers as well as offering upgrade paths. This article will step you through...

Automatic CentOS 6 Updates

Overview Applying system updates is an essential part of managing a server. This is to ensure that security patches and bug updates are applied and will ensure that you system stays running. With stable Linux platforms such as...

Meltdown and Spectre Vulnerability

Overview Since a patch hit the Linux kernel in late December 2017, it indicated that there was a potential (and critical) security flaw in the way CPU’s allocate memory.  As no official security report had been published, there had been a...

Does Conetix Support APC for PHP?

Overview Conetix does not provide support for the Alternative PHP Cache (APC) nor APCu out of the box, as it’s not a standard PHP component. However, it’s important to look at what part of the caching you’re actually after....

How to set up a new subscription under an existing client in Plesk

Overview The following article demonstrates how to create a new subscription under an existing customer in Plesk. This is particularly useful to allow you to manage multiple hosting within a VPS, so that hosting subscriptions can be linked...

Plesk License Key is Invalid

Overview If you’ve attempted to login to your Plesk based Virtual Private Server, and see the following error: The error does not mean the license key is invalid but simply that the server has run very low on...

How can I purchase a Plesk 12.5 License?

Overview How can I purchase a Plesk 12.5 license key for my server? *How can I purchase a Cloudlinux & Plesk 12.5 license bundle key for my server? *How can I purchase a Kernelcare license key for my server? *Only Available on Linux Platform Each license is available in...

MySQL Error when importing database

Overview When moving between servers, sometimes the large database sizes can cause issues with a standard MySQL / MariaDB configuration. If you see the following when importing: MySQL Error 2006 (HY000) at line XX: MySQL server has gone away...

ImunifyAV Scanning

Overview Conetix uses a multi-layered approach to security, which involves the use of different security tools and services at different levels. One of these tools is ImunifyAV, which is a highly efficient malware and detection engine aimed directly...

Plesk – Server reached max_children PHP error

Overview For a PHP based site, you may (on rare occasions) encounter an error with the number of FPM processes allocated to your site. The error message will look something like: server reached max_children setting (5), consider raising...

How to Add Custom Panel Branding in Plesk for a VPS

Overview The following support article demonstrates how to add a customized the logo within a VPS, replacing the default Parallels logo, in the top left hand corner of Plesk. This can be done to customise your Plesk panel...

Moving Email to Conetix via Mail Importer

Overview This article will guide you through importing email from an external IMAP server onto your subscription with Conetix.This article is suitable for VPS and shared hosting customers and assumes the source inbox is not pointed to Conetix...

Plesk – Enable Fail2Ban

Overview This article will show you how to enable Fail2Ban within your Plesk based Virtual Private Server (VPS). Fail2Ban is a security module which can limit brute force attacks to your server. NOTE: Secure passwords are far more critical...

Plesk Onyx: How to set up a new subscription under an existing client

Overview The following article demonstrates how to create a new subscription under an existing customer in Plesk. This is particularly useful to allow you to manage multiple hosting setups within a VPS, so that hosting subscriptions can be linked to...

Linux Memory Usage

Overview While initial views of the Linux memory statistics may suggest the system has run out of memory, the reality is that Linux uses any free RAM available as a disk cache and buffering for network services. By...

Penetration Testing – Request Permission

Overview Before conducting an external Penetration Testing (also known as "pen testing"), you must seek written permission from Conetix before proceeding. As many of the tests involved use scripts and automated systems which use brute force or multiple attacks to test,...

Blank page in Firefox when using a secure (SSL) connection with HTTP/2

Overview If you have recently enabled HTTP/2 on your Plesk 12.5 server, sites viewed in Firefox may simply display a blank page. This is because the default configuration may still use a cipher which has been blacklisted in Firefox only....

How to Manage Email Notices within Plesk

Overview The following article demonstrates how to configure email notices on system events in Plesk. This allows configuring notifications for both the server administrator as well as customers. Instructions Once Logged in to the server, from the left...

How to Make a Pre-Installed CMS available under a Subscription in Plesk

Overview This support article demonstrates how to make a Content Management System (CMS) available for install on a subscription within a VPS. This is handy for you are on Partner plans to be able to offer one click...

Plesk Onyx: Create an Additional Administrator User

Overview Plesk allows for the creation and management of multiple Administrator Accounts. Administrator Accounts are accounts that have access to wide range of settings and features within the Plesk Control Panel. Having multiple Adiministrator Accounts can be useful...

How to suspend a subscription in Plesk

Overview The following article demonstrates how to suspend a subscription within Plesk. This action will immediately disable any website or emails under this subscription, however it will not delete the subscription. Suspending a subscription will not suspend DNS...

Disable SSLv3 support in the NGINX Web Server

Overview The recently announced SSLv3 exploit also known as “POODLE” has now made SSL protocols totally vulnerable and thrust TLS as the preferred HTTPS security protocol. However you will need to disable SSL support in your web server’s SSL configuration to ensure you...

How to add a new FTP account in Plesk

Overview The following support article demonstrates how to create a new FTP account in a subscription within Plesk. Instructions Log into Plesk either via the Conetix Control Panel, or via your VPS login page. If you access Plesk...

MySQL Backups via Plesk (phpMyAdmin)

Overview This article will guide you through taking a backup of your MySQL database via Plesk, using the inbuilt phpMyAdmin utility. This highly recommended to do before running any website upgrades (eg Joomla or WordPress) or when  Instructions...

Windows Container based Virtual Machines

Overview Conetix runs Parallels Virtuozzo to provide container based Virtual Machines (VM's) across both Windows and Linux. This provides full server level speed for running remote desktops and applications, yet all the isolation and control of traditional virtualised...

Microsoft SQL Server SPLA Licensing Options

Overview The world of Microsoft SQL Server licensing can be confusing and complicated, especially when there’s different licensing agreements and even differences between the agreements with different regions around the world. Under the Microsoft Service Provider Licencing Agreement...

Plesk Onyx – Increasing your outgoing mail limit.

Overview By default, Conetix sets an outgoing email limit within Plesk to prevent accidental misuse of email accounts for sending spam email. We recommend leaving this restriction in place and adjusting limits as required to ensure your server...

Maintaining staging and development sites

Overview A common occurrence when when working on large sites is to spin up a copy of the site as a staging or development copy of the live website to make changes to. While this is a great...

Plesk – Diskspace Usage Viewer Extension

Overview This article will detail how to use the Diskspace Usage Viewer Extension in Plesk. This extension can be used to easily and pictorially display the disk usage and help show where the space is used on your...

MySQL: Basic Command Quick Reference

MySQL Quick Reference Here’s a few of the basic commands to get you started with MySQL from the Linux shell. This article is intended to be a quick reference “cheat sheet” more than an explanation of each command....

Enable WHMCS Debugging

Overview By default, WHMCS will hide all errors (eg PHP errors) you experience and this results in either a blank page or a 500 error from the server. When installing new modules, it can be beneficial to test...

Blocking access via a .htaccess file

Overview If you want to block access to a directory on your website or to all of your website, you can do this via a simple Apache .htacess file. This file allows you to override some of the...

Specific Website Redirection via .htaccess

Overview If you’ve added a domain alias to redirect an existing domain to your main website, by default it will redirect all calls (via an SEO friendly 301) back to the same path on your new site. For...

Disable WordPress Application Update Notifications

Overview This article aims to guide you through disabling notifications from Plesk about WordPress Updates. These are sent to the server Administrator by default, but can be disabled if excessive amounts of notifications are being sent. Instructions Log...

Plesk 12 – How to Set Mailbox Size in Plesk for a VPS

Overview The following support article demonstrates how to set the size limit for email accounts under a subscription in Plesk for a VPS. This can be done to limit the amount of hard drive space that the mailbox owner...

Disable SSLv3 support in the Apache Web Server

Overview The recently announced SSLv3 exploit also known as “POODLE” has now made SSL protocols totally vulnerable and thrust TLS as the preferred HTTPS security protocol. However you will need to disable SSL support in your web server’s SSL...

How Much Free Disk Space Should I Have On My Server?

Conetix recommends maintaining at least 10% or your largest website as free space on your server.

Conetix Firewall Frequently Asked Questions

Overview Conetix uses a multi-layered approach to security to ensure your data is safe. This includes advanced firewalls, server lockdown and security restrictions and for Plesk based systems a number of new security features. We run a clustered,...

Plesk MySQL Import fails: the SUPER privileges required

Overview If you encounter “Access denied; you need (at least one of) the SUPER privilege(s) for this operation” during a MySQL import, this could be due to the SQL dump containing DEFINER in the create statement. For example:...